mirror of https://github.com/Icinga/icinga2.git
46 lines
913 B
C++
46 lines
913 B
C++
/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */
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#include "livestatus/minaggregator.hpp"
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using namespace icinga;
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MinAggregator::MinAggregator(String attr)
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: m_MinAttr(std::move(attr))
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{ }
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MinAggregatorState *MinAggregator::EnsureState(AggregatorState **state)
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{
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if (!*state)
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*state = new MinAggregatorState();
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return static_cast<MinAggregatorState *>(*state);
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}
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void MinAggregator::Apply(const Table::Ptr& table, const Value& row, AggregatorState **state)
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{
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Column column = table->GetColumn(m_MinAttr);
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Value value = column.ExtractValue(row);
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MinAggregatorState *pstate = EnsureState(state);
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if (value < pstate->Min)
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pstate->Min = value;
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}
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double MinAggregator::GetResultAndFreeState(AggregatorState *state) const
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{
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MinAggregatorState *pstate = EnsureState(&state);
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double result;
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if (pstate->Min == DBL_MAX)
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result = 0;
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else
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result = pstate->Min;
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delete pstate;
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return result;
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}
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